The application implements dets i/o interface so that cluster node can perform dets i/o using Erlang distribution without any needs to use rpc or wrapper servers.
see http://www.erlang.org/doc/man/dets.html
{ok, Pid} = d3:open_file(my_table, [{file, "/tmp/my_table"}]).
d3:insert(Pid, {1, "my data"}).
d3:lookup(Pid, 1).
%% Pid of dets process can be communicated to Erlang cluster nodes
%% Erlang distribution would take care of IPC
d3:close(my_table).